Check Engine Light Diagnostics

Your check engine light is a warning that something in your vehicle’s engine or emissions system needs attention. It could be something minor, like a loose gas cap, or something more serious that requires immediate repair.

If the light is steady, your car is usually safe to drive short distances, but you should schedule a diagnostic soon. If it’s flashing, that means there’s a serious issue, and you should stop driving and get your vehicle checked right away.

A solid light usually indicates a non-emergency issue that still needs attention. A flashing light signals a severe problem, like a misfire, which can damage your engine or catalytic converter if you keep driving.

Diagnostic fees vary depending on the shop, but at Bachman’s Auto Repair, we keep our pricing fair and transparent. The diagnostic test saves money in the long run by pinpointing the exact issue instead of guessing.

You can disconnect the battery or use a code scanner to clear the light, but this won’t fix the underlying problem. In most cases, the light will just come back on until the real issue is repaired.

No. In Pennsylvania and most states, an active check engine light means your car will fail emissions inspection. It needs to be diagnosed and repaired first.

Some of the most common triggers include a loose or faulty gas cap, oxygen sensor failure, catalytic converter issues, misfires, or problems with spark plugs and ignition coils.

Most check engine light diagnostics can be completed in under an hour. If repairs are needed, we’ll provide you with a full estimate before any work begins.

If it’s flashing — yes, right away. If it’s solid, it’s not an emergency, but don’t wait too long. The problem could get worse and lead to more costly repairs.

No — clearing the code only turns the light off temporarily. The true fix comes from repairing the issue causing the code in the first place.